Sceptical voters on low and middle incomes need much more reassurance that the party is on their side.

Workmen manoeuvre a large model of the Conservative Party symbol on stage at last year's party conference in Birmingham. Photograph: Getty Images.

The modernisation of the Conservative Party is an unfinished project. As such, despite an impressive swing towards the Conservatives in the last general election, we were not able to form a majority government in 2010.

Gloomy economic circumstances and the nature of coalition have meant the modernisation project has been undermined. It’s time to give it a reboot. This book by Bright Blue offers the blueprint for the second stage of Tory modernisation so the Conservative Party and, more importantly, British society and the economy flourish in the years ahead.

Since its formation in 2010, Bright Blue has built a grassroots pressure group of Conservative activists, councillors and MPs to ensure strong foundations for continuous modernisation. This book includes essays by influential individuals from this modernising alliance – politicians, activists, journalists and policy-makers. Each contributor offers a new vision and radical policies for the Conservative Party to adopt.

This time, we must emphasise the breadth of the modernisation package. It is vital for a safer and fairer future that we retain our modest spending commitment to international aid, support renewable energies, and legalise same-sex marriage. But sceptical voters on low and middle incomes need much more reassurance that we are on their side as they strive for a better future for their families. Historically, Conservatism has been at its best when it is open-minded and big-hearted, providing ladders of opportunity for people from modest backgrounds. So the focus now needs to be on helping these families with the cost of living and accessing high-quality public services.

Where the Conservative Party has gained the most traction recently is with changes to the education and welfare systems, providing positive and effective reforms in these areas which are traditionally associated more with left-wing parties. Let us now be bolder on further reform of public services. This is not about abandoning our principles, but applying and adapting Conservative principles to areas which are really important and relevant to people.